Cassius clay palmer



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0. G. PALMER. CONTROLLING THE SPEED OF MECHANICAL EEEEIGERATINGAPPARATUS ON RAILWAY CARS FROM THE OUTSIDE.

No. 330,046. Patented Nov. 10, 1885.

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GASSIUS CLAY PALMER, OF NEW YORK, N. Y.

CONTROLLING THE SPEED OF MECHANICAL REFRIGERATTNG APPARATUS ONRAILWAY-CARS FROM THE OUTSIDE.

SPECIFICATION forming part of Letters Patent No. 330,0l6, dated November10, 1885.

Application filed July 16, 1885.

To all whom it may concern.-

Be it known that I, CASSIUS CLAY PALMER, of New York, in the county ofNew York and State of New York, have invented a certain new and usefulImprovement particularly ly applicable to Controlling the Speed ofMechanical Refrigerating Apparatus on a Railroad-Gar from the Outside ofthe Car, of which the following is a specification.

In an application filed by me July 6, 1885, Serial No. 170,835, and inPatent No. 290,600, I have described apparatuses to be used on arefrigerating-car for refrigerating purposes.

My present invention relates to a substitute for a portion of theapparatus therein described.

In the drawings, Figure 1 is a longitudinal section through the line 11, Fig. 2, showing one end of the car. Fig. 2 is a crosssection of thesame through the line 2 2, Fig. 1.

The refrigerator A, condenser B, condensing-pump O, former D, conduit E,belt F, and their connections and relative arrangement and operationwere described in my Pat ent No. 290,600; therefore no description ofthese parts is here necessary.

My present improvement relates to mechanism by which power iscommunicated from the belt F to the fly-wheel G of I thecondensing-engine. This mechanism I will now proceed to describe.

a is a fixed pulley driven by the belt F. b, c, and dare friction-gears,which are provided on their peripheries with V or other suit-ably shapedfriction-surfaces. d is on the same shaft with a, and they turntogether. b is on the same shaft with the conical pulley e, and theyturn together. 0 is on a shaft in one arm of the lever f, which ispivoted on speed transmitted by the belt i from one to the other.

The bearings of the shaft on which 6 turns are made verticallyadjustable to maintain the tension on the belt 1. The shaft turned bythe pulley h is connected by bevel-gears with the fly-wheel G of thecondensing-pump, so as to drive the latter. The shifting of the belt ton the pulleys c and h to vary the speed is accomplished from the top ofthe car by turning the hand-wheel j, which connects, by the rod j, thebevel-gears k and Z and the screw-threaded rod m with the belt-shiftern, which forms a screw-threaded connection with rod m, and is thus movedby the rotation of the latter, so as to shift the belt.

0 and p are hand-wheels by which the rods 9 and it may be respectivelyturned from the inside of the car.

The operation is as follows: When the friction-wheels b, c, and d are ingear, the axle of the car through the connecting parts drives thecondensing-pump. When it is desired to stop the pump while the car isstill running, the attendant on the roof of the car turns the hand wheeland thus disconnects the wheels 0 and d. When it is desired to vary therelative speed of the pump and the caraxle, the attendant on top of thecar turns the hand-Wheel j, which shifts the belt toward one end or theother of the cone-pulleys, as may be required.

In lieu of the belt 2 and as the equivalent thereof, a friction-wheelmight be interposed between h and t, such wheel being movable by the rodn longitudinally on a shaft parallel with the surfaces of thecone-pulleys, and

forming a friction-connection with the conethe operative connectionbetween the cardescribed, whereby an attendant outside the axle andapparatus on the car driven thereby. car may vary the speed at whichmechanism IO 2. In combination, the conical pulley c, on the car is runrelatively to the speed of the driven from the axle of the car, theconical car-axle.

5 pulley h, whereby apparatus located on the OASSIUS CLAY PALMER.

car is driven, the shifting-belt z, or equiva- Witnesses: lent, theshifter n, operated by the rod j, ex- DANIEL H. DRIsooLL, tendingoutside the car, all substantially-as. EDWARD F. ROCHE;

